/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package order;

import entity.Orders;
import entity.Users;
import facade.OrdersFacadeLocal;
import facade.UsersFacadeLocal;
import java.io.IOException;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Collection;
import java.util.List;
import java.util.Vector;
import javax.ejb.EJB;
import javax.jms.Session;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import utils.JSON;

/**
 *
 * @author Svetlana Shikhutskaya
 */
public class LoadOrders extends HttpServlet {

    @EJB
    private OrdersFacadeLocal ordersFacade;
    @EJB
    private UsersFacadeLocal usersFacade;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        Integer pageNumber = Integer.parseInt(request.getParameter("pageNumber"));
        String sortBy = request.getParameter("sortBy");
        HttpSession session = request.getSession();
        session.setAttribute("pageNumber", pageNumber);
        session.setAttribute("sortBy", sortBy);
        Users user = (Users) session.getAttribute("user");
        List<Orders> orders = null;
        if (sortBy != null) {
            orders = (List<Orders>) ordersFacade.findRangeSortBy(pageNumber, user, sortBy);
        } else {
            Integer key = Integer.parseInt(request.getParameter("find"));
            orders = (List<Orders>) ordersFacade.findRangeByKey((pageNumber - 1) * 10, 10, user, key);
        }
        JSON json=new JSON();
        response.getWriter().write(json.ordersToJSON(orders));
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
